Stereochemical Criteria for Prediction of the Effects of Proline Mutations on Protein Stability. - Kanika Bajaj; Mallur S. Madhusudhan; Bharat V. Adkar; Purbani Chakrabarti; C. Ramakrishnan; Andrej Sali; Raghavan Varadarajan (PLoS Comput. Biol., 2007)